CN104581693A - Method and device for providing dynamic assistance information in communication system - Google Patents
Method and device for providing dynamic assistance information in communication system Download PDFInfo
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- CN104581693A CN104581693A CN201310489289.3A CN201310489289A CN104581693A CN 104581693 A CN104581693 A CN 104581693A CN 201310489289 A CN201310489289 A CN 201310489289A CN 104581693 A CN104581693 A CN 104581693A
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- dci message
- subscriber equipment
- dynamic supplementary
- dynamic
- supplementary
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
- H04L1/0028—Formatting
- H04L1/003—Adaptive formatting arrangements particular to signalling, e.g. variable amount of bits
Abstract
The invention provides a method for providing dynamic assistance information. The method comprises the following steps: a base station sends the dynamic assistance information of one or more user equipment through a piece of DCI (downlink control information), wherein the DCI comprises identification information and the dynamic assistance information of the one or more user equipment, the identification information is used for identifying the dynamic assistance information contained in the DCI; besides, when the base station sends the dynamic assistance information of multiple user equipment through one piece of DCI, the base station further sends information of location, in the DCI, of the dynamic assistance information of each user equipment in the multiple user equipment to each user equipment.
Description
Technical field
The present invention relates to communication system, particularly relate to the method and apparatus that dynamic supplementary is provided in a kind of communication system.
Background technology
Because the spatial reuse of more intensive community and higher level will be deployed in future broadband wireless communication systems, therefore, the Main Bottleneck by becoming the higher network performance of acquisition is disturbed.In the environment of interference-limited, the high level receiver that can effectively suppress or eliminate interference will play important effect, for the ease of the use of high level receiver, in 3GPP RAN#59 meeting, have approved new Release12 research project " Study onNetwork-Assisted Interference Cancellation and Suppression for LTE (NAICS) ".In this subject under discussion, RAN1 is responsible for the identification of deployment scenario and corresponding interference analysis and solution and Signalling Designing.The main target of RAN4 to point out the hypothesis of network of relation supplementary (network assitance information).
In upper once RAN4 meeting (being also RAN4#68), NAICS has achieved larger progress.The link level performance of different receivers is assessed.In addition, the dissimilar interference signal parameters needed for interference signal information of acquisition has also been discussed.In next step, RAN1 need to use high level receiver assess with/without the system-level performance of network-assist information and the corresponding criteria influences of Water demand.
The characteristic obtaining interference is necessary for effective work of IS/IC receiver.Interfere information or obtain from network side (also namely, network assistance), or is obtained by the blind Detecting of subscriber equipment (UE) self.The network coordination, on the other hand, also can be contributed to the operation of NAICS receiver by one or more base station (eNB) amendment/restriction transformation parameter.Network-assist information is also necessary for coordinating result to receiver instruction.Generally speaking, supplementary is roughly divided into following three classes: static information (time long), semi-static information (ten seconds or hundreds of millisecond) and multidate information (each TTI).About multidate information, even if having the UE of NAICS ability for one, its also without the need to there is at UE Resourse Distribute each subframe in be provided:
-about whether providing the decision of network assistance signaling to depend on network a subframe;
-such as, if neighbor cell does not also provide relevant information to the serving BS of UE, if or the stronger interference signal of other UE is not dispatched in the Physical Resource Block identical with this UE, or multiple different overlapping interference signal united scheduling is to make to provide network assistance signaling to be unpractical, so without the need to providing network-assist information in each subframe;
-IS/IC receiver possibility imperfection, and always performance may not be better than traditional receiver.
Therefore, be necessary to provide one effectively can provide the scheme of dynamic network supplementary (dynamic network assistance information).
Summary of the invention
In order to realize object of the present invention, in the various embodiments of the invention, propose Downlink Control Information (the downlink controlinformation using and carried by PDCCH/EPDCCH, DCI) transmit dynamic supplementary, such as, can modify to existing DCI format or introduce new DCI format to carry dynamic supplementary.Use DCI message to transmit dynamic supplementary to can be good at keeping backwards compatibility, provide effective physical layer signaling mode simultaneously.
In one embodiment, DCI design of the present invention meets following principle:
-base station can dynamically send dynamic supplementary, and dynamically also can not occur can appear in supplementary in a subframe;
-subscriber equipment does not increase substantially about the complexity of blind check.
Consider based on above-mentioned, the present invention in one embodiment, propose a kind of in the base station of communication system for providing the method for dynamic supplementary, comprise the following steps:
-send the dynamic supplementary for multiple subscriber equipment by a DCI message, described DCI message comprises identification information and the dynamic supplementary for described multiple subscriber equipment, and described identification information is dynamic supplementary for identifying what comprise in this DCI message;
Wherein, described method also comprises:
-positional information of dynamic supplementary in described DCI message for each subscriber equipment in described multiple subscriber equipment is sent to described each subscriber equipment respectively.
Favourable, described DCI message sends on the public search space of PDCCH/EPDCCH.
Favourable, the size of described DCI message is consistent with DCI format 0/1A.
Favourable, described positional information is sent to described each subscriber equipment respectively by RRC signaling.
Favourable, described identification information is the RNTI mark being different from C-RNTI, is dynamic supplementary and non-scheduling information for identifying what comprise in this DCI message; Or described identification information is flag bit, be used to indicate comprise in this DCI message be dynamic supplementary and non-scheduling information.
The present invention in another embodiment, propose a kind of in the base station of communication system for providing the method for dynamic supplementary, comprise the following steps:
-sending the dynamic supplementary for a subscriber equipment by a DCI message, described DCI message comprises identification information and the dynamic supplementary for this subscriber equipment, and described identification information is dynamic supplementary for what comprise in this DCI message.
Favourable, described identification information is the RNTI mark being different from C-RNTI, is dynamic supplementary and non-scheduling information for identifying what comprise in this DCI message.In this example embodiment, described method is further comprising the steps of: send the schedule information for this subscriber equipment by another DCI message, and whether described DCI message comprises flag information and be used to indicate in same subframe in addition for the dynamic supplementary of this subscriber equipment.
Favourable, described identification information is flag bit, be used to indicate comprise in this DCI message be dynamic supplementary and non-scheduling information.In this example embodiment, described method is further comprising the steps of: send the schedule information for this subscriber equipment by another DCI message, described DCI message comprises flag bit, be used to indicate comprise in this DCI message be schedule information and non-dynamic supplementary.
The present invention in another embodiment, propose a kind of in the subscriber equipment of communication system for obtaining the method for dynamic supplementary, comprise the following steps:
-detect DCI message from base station, to judge the type of described DCI message;
If-described DCI message is the DCI message comprising dynamic supplementary, then based on the positional information of dynamic supplementary in this DCI message for this subscriber equipment received from described base station, from this DCI message, obtain the dynamic supplementary for this subscriber equipment;
If-described DCI message is the DCI message comprising schedule information, then from this DCI message, obtain the schedule information for this subscriber equipment.
The present invention in another embodiment, propose a kind of in the subscriber equipment of communication system for obtaining the method for dynamic supplementary, comprise the following steps:
-detect DCI message from base station, to judge the type of described DCI message;
If-described DCI message is the DCI message comprising dynamic supplementary, then from this DCI message, obtain the dynamic supplementary for this subscriber equipment;
If-described DCI message is the DCI message comprising schedule information, then from this DCI message, obtain the schedule information for this subscriber equipment.
Various aspects of the present invention are more clear by the explanation by specific embodiment hereinafter.
Accompanying drawing explanation
By reading the detailed description done non-limiting example done with reference to the following drawings, other features, objects and advantages of the present invention will become more apparent:
Fig. 1 shows the design comprising the DCI message of dynamic supplementary according to an embodiment of the invention;
Fig. 2 shows the design comprising the DCI message of dynamic supplementary according to another embodiment of the invention;
Fig. 3 shows the design comprising the DCI message of dynamic supplementary according to still another embodiment of the invention;
Fig. 4 shows the design comprising the DCI message of dynamic supplementary according to still a further embodiment.
In the drawings, same or similar Reference numeral represents identical or corresponding parts or feature.
Embodiment
Hereinafter by reference to the accompanying drawings various embodiments of the present invention are described in detail.
In one embodiment, a new DCI message can be used to transmit dynamic supplementary, the size of this DCI message can with the in the same size of existing DCI format0/1A or also can in the same size with existing TM-dependent DCI format (transmission mode is DCI format independently).Be understandable that, the size being used for the DCI message transmitting dynamic supplementary be designed to consistently with one of existing two kinds of DCI format can avoid extra blind check.
In order to this DCI message is different from the existing DCI message for transmitting scheduling information, also comprising identification information in this DCI message, is dynamic supplementary for identifying what comprise in this DCI message.Such as, this identification information can be the NAICS-RNTI mark being different from C-RNTI mark, when the mark that subscriber equipment detects in this DCI message be NAICS-RNTI but not C-RNTI (existing be C-RNTI for the mark in the DCI message of transmitting scheduling information) time, then can know what transmit in this DCI message is dynamic supplementary, as shown in Figure 1.
Again such as, mark in this DCI message still uses C-RNTI, like this, in order to the DCI message of the dynamic supplementary of transmission is different from the existing DCI message for transmitting scheduling information, flag bit can be inserted in this DCI message, be used to indicate comprise in this DCI message be dynamic supplementary and non-scheduling information.In this case, base station send for also can flag bit be inserted in the DCI message of transmitting scheduling information, being used to indicate what comprise in this DCI message is schedule information and non-dynamic supplementary.For example, the flag bit inserted in the DCI message of the dynamic supplementary of transmission can be 10, and the flag bit inserted in the DCI message of transmitting scheduling information can be 01, like this, namely subscriber equipment clearly can be known according to this flag bit the DCI message be currently received and comprise the DCI message of schedule information or comprise the DCI message of dynamic supplementary.As shown in Figure 2.
In one embodiment, for transmit dynamic supplementary DCI message in only can comprise dynamic supplementary for a subscriber equipment.In this case, favourable, a flag information can be comprised in the DCI message comprising for the schedule information of this subscriber equipment that base station sends, be used to indicate the DCI message that whether also there will be the dynamic supplementary comprised for this subscriber equipment in same subframe, as shown in Figure 3.If the instruction of this flag information there will not be the DCI message of the dynamic supplementary comprised for this subscriber equipment in same subframe, so, for this subscriber equipment navigating to its oneself schedule information, it can skip the blind check to the DCI message comprising dynamic supplementary.
It should be noted that if subscriber equipment fails to detect that so, even if this subscriber equipment detects the DCI message comprising dynamic supplementary, this DCI message is also useless about its oneself the DCI message comprising schedule information.This DCI message comprising dynamic supplementary only can be used for showing that this subscriber equipment has missed about its oneself the DCI message comprising schedule information.
In another embodiment, because dynamically the size of supplementary is smaller in some cases, therefore, the dynamic supplementary for multiple subscriber equipment can be gathered together be placed in DCI message and transmit, as shown in Figure 4.This DCI message can such as in the upper transmission of the public search space (common search space) of PDCCH/EPDCCH (if under following EPDCCH has the prerequisite of public search space).In this embodiment, base station also needs the positional information of the dynamic supplementary for each subscriber equipment in the plurality of subscriber equipment in this DCI message to be sent to this each subscriber equipment respectively by such as RRC signaling, such subscriber equipment can based on the positional information received, and obtains for its oneself dynamic supplementary from this DCI message.
Favourable, the size of the DCI message comprising dynamic supplementary can be reduced in the following manner, thus reduce transport overhead.Such as, for the receiver of some type, the such as receiver of symbol rank (symbol-level), the resource allocation information about interference user equipment in dynamic supplementary can be removed because can suppose the resource allocation conditions of interference user equipment and this be disturbed the same or similar of subscriber equipment.Again such as, only can send the Modulation and Coding Scheme of interference user equipment and this is disturbed the difference of the Modulation and Coding Scheme of subscriber equipment, also can reduce the expense transmitting dynamic supplementary like this.
It will be understood by those skilled in the art that the DCI message for transmitting dynamic supplementary also can be different from existing DCI format.In this case, may the number of times of adding users equipment side blind check.
In addition, in other embodiments, also dynamic supplementary can be inserted into existing for transmitting in the DCI message of transmitting scheduling information, in this case, also need to comprise indication information in this DCI message, be used to indicate the position of dynamic supplementary in this DCI message.
It should be noted that, above-described embodiment is only exemplary, but not limitation of the present invention.Any technical scheme not deviating from spirit of the present invention all should fall within protection scope of the present invention, and this comprises the different technologies feature that use occurs in different embodiments, and installation method can combine, to obtain beneficial effect.In addition, any Reference numeral in claim should be considered as the claim involved by restriction; " comprise " word and do not get rid of device unlisted in other claims or specification or step.
Claims (16)
1. in the base station of communication system for providing a method for dynamic supplementary, comprise the following steps:
-send the dynamic supplementary for multiple subscriber equipment by a DCI message, described DCI message comprises identification information and the dynamic supplementary for described multiple subscriber equipment, and described identification information is dynamic supplementary for identifying what comprise in this DCI message;
Wherein, described method also comprises:
-positional information of dynamic supplementary in described DCI message for each subscriber equipment in described multiple subscriber equipment is sent to described each subscriber equipment respectively.
2. method according to claim 1, wherein, described DCI message sends on the public search space of PDCCH/EPDCCH.
3. method according to claim 1, wherein, the size of described DCI message is consistent with DCI format 0/1A.
4. method according to claim 1, wherein, described positional information is sent to described each subscriber equipment respectively by RRC signaling.
5. method according to claim 1, wherein, described identification information is the RNTI mark being different from C-RNTI, is dynamic supplementary and non-scheduling information for identifying what comprise in this DCI message; Or
Described identification information is flag bit, be used to indicate comprise in this DCI message be dynamic supplementary and non-scheduling information.
6. in the base station of communication system for providing a method for dynamic supplementary, comprise the following steps:
-sending the dynamic supplementary for a subscriber equipment by a DCI message, described DCI message comprises identification information and the dynamic supplementary for this subscriber equipment, and described identification information is dynamic supplementary for what comprise in this DCI message.
7. method according to claim 6, wherein, described identification information is the RNTI mark being different from C-RNTI, is dynamic supplementary and non-scheduling information for identifying what comprise in this DCI message.
8. method according to claim 7, wherein, described method is further comprising the steps of:
-send the schedule information for this subscriber equipment by another DCI message, whether described DCI message comprises flag information and is used to indicate in same subframe in addition for the dynamic supplementary of this subscriber equipment.
9. method according to claim 6, wherein, described identification information is flag bit, be used to indicate comprise in this DCI message be dynamic supplementary and non-scheduling information.
10. method according to claim 9, wherein, described method is further comprising the steps of:
-being sent for the schedule information of this subscriber equipment by another DCI message, described DCI message comprises flag bit, and being used to indicate what comprise in this DCI message is schedule information and non-dynamic supplementary.
11. 1 kinds in the subscriber equipment of communication system for obtaining the method for dynamic supplementary, comprise the following steps:
-detect DCI message from base station, to judge the type of described DCI message;
If-described DCI message is the DCI message comprising dynamic supplementary, then based on the positional information of dynamic supplementary in this DCI message for this subscriber equipment received from described base station, from this DCI message, obtain the dynamic supplementary for this subscriber equipment;
If-described DCI message is the DCI message comprising schedule information, then from this DCI message, obtain the schedule information for this subscriber equipment.
12. 1 kinds in the subscriber equipment of communication system for obtaining the method for dynamic supplementary, comprise the following steps:
-detect DCI message from base station, to judge the type of described DCI message;
If-described DCI message is the DCI message comprising dynamic supplementary, then from this DCI message, obtain the dynamic supplementary for this subscriber equipment;
If-described DCI message is the DCI message comprising schedule information, then from this DCI message, obtain the schedule information for this subscriber equipment.
13. 1 kinds in the base station of communication system for providing the device of dynamic supplementary, comprising:
First transmitting element, for being sent the dynamic supplementary for multiple subscriber equipment by a DCI message, described DCI message comprises identification information and the dynamic supplementary for described multiple subscriber equipment, and described identification information is dynamic supplementary for identifying what comprise in this DCI message;
Wherein, described first transmitting element also for; The positional information of dynamic supplementary in described DCI message for each subscriber equipment in described multiple subscriber equipment is sent to described each subscriber equipment respectively.
14. 1 kinds in the base station of communication system for providing the device of dynamic supplementary, comprising:
Second transmitting element, for sending by the dynamic supplementary of a DCI message transmission for a subscriber equipment, described DCI message comprises identification information and the dynamic supplementary for this subscriber equipment, and described identification information is dynamic supplementary for what comprise in this DCI message.
15. 1 kinds in the subscriber equipment of communication system for obtaining the device of dynamic supplementary, comprising:
First detecting unit, for detecting the DCI message from base station, to judge the type of described DCI message;
First acquiring unit, if for described DCI message be the DCI message comprising dynamic supplementary, then based on the positional information of dynamic supplementary in this DCI message for this subscriber equipment received from described base station, from this DCI message, obtain the dynamic supplementary for this subscriber equipment; If described DCI message is the DCI message comprising schedule information, then from this DCI message, obtain the schedule information for this subscriber equipment.
16. 1 kinds in the subscriber equipment of communication system for obtaining the device of dynamic supplementary, comprising:
Second detecting unit, for detecting the DCI message from base station, to judge the type of described DCI message;
Second acquisition unit, if be the DCI message comprising dynamic supplementary for described DCI message, then obtains the dynamic supplementary for this subscriber equipment from this DCI message; If described DCI message is the DCI message comprising schedule information, then from this DCI message, obtain the schedule information for this subscriber equipment.
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| CN201310489289.3A CN104581693B (en) | 2013-10-18 | 2013-10-18 | The method and apparatus of dynamic auxiliary information are provided in communication system |
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| CN201310489289.3A CN104581693B (en) | 2013-10-18 | 2013-10-18 | The method and apparatus of dynamic auxiliary information are provided in communication system |
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Cited By (3)
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| CN105246164A (en) * | 2015-10-27 | 2016-01-13 | 魅族科技（中国）有限公司 | Data transmission method and data transmission device for ultra-dense network |
| CN106713193A (en) * | 2015-07-20 | 2017-05-24 | 北京三星通信技术研究有限公司 | Multi-user multiplexing transmission method and device |
| CN110719635A (en) * | 2018-07-13 | 2020-01-21 | 维沃移动通信有限公司 | Channel detection indication method, terminal and network equipment |
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| CN106713193A (en) * | 2015-07-20 | 2017-05-24 | 北京三星通信技术研究有限公司 | Multi-user multiplexing transmission method and device |
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| CN110719635B (en) * | 2018-07-13 | 2021-09-17 | 维沃移动通信有限公司 | Channel detection indication method, terminal and network equipment |
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